Question 1

What is this vulnerability? (Essence + Consequences)

Accepted Answer

🚨 **Essence**: Untrusted data is deserialized in **Goodlayers Hotel** plugin.
💥 **Consequences**: Leads to **PHP Object Injection**.…

Question 2

Root Cause? (CWE/Flaw)

Accepted Answer

🛡️ **Root Cause**: **CWE-502** (Deserialization of Untrusted Data).
🔍 **Flaw**: The plugin fails to validate or sanitize data before passing it to PHP's `unserialize()` or similar functions.…

Question 3

Who is affected? (Versions/Components)

Accepted Answer

🏢 **Affected Vendor**: **GoodLayers**.
📦 **Product**: **Goodlayers Hotel** WordPress Plugin.
📅 **Versions**: **3.1.4 and earlier**. If you are running this version or older, you are at risk.

Question 4

What can hackers do? (Privileges/Data)

Accepted Answer

💀 **Attacker Capabilities**:
1. **Remote Code Execution (RCE)** via object injection.
2. **Full System Control**: Read/write files, execute commands.
3.…

Question 5

Is exploitation threshold high? (Auth/Config)

Accepted Answer

🔓 **Exploitation Threshold**: **LOW**.
📊 **CVSS Vector**: `AV:N/AC:L/PR:N/UI:N`.
✅ **No Auth Required**: Privileges (PR) are None.
✅ **No User Interaction**: UI is None.…

Question 6

Is there a public Exp? (PoC/Wild Exploitation)

Accepted Answer

📜 **Public Exploit**: **No specific PoC provided** in the CVE data.
⚠️ **Risk**: High. Since CVSS is High and Auth is None, automated scanners and exploit kits likely target this class of vulnerability.…

Question 7

How to self-check? (Features/Scanning)

Accepted Answer

🔍 **Self-Check Steps**:
1. Check WordPress Dashboard > Plugins.
2. Look for **Goodlayers Hotel**.
3. Verify Version Number.
4. If **≤ 3.1.4**, you are vulnerable.
5.…

Question 8

Is it fixed officially? (Patch/Mitigation)

Accepted Answer

🛠️ **Official Fix**: **Yes**.
📢 **Action**: Update to the latest version of **Goodlayers Hotel**.…

Question 9

What if no patch? (Workaround)

Accepted Answer

🚧 **No Patch Workaround**:
1. **Disable Plugin**: Deactivate Goodlayers Hotel immediately if not essential.
2. **WAF Rules**: Block requests containing serialized PHP payloads.
3.…

Question 10

Is it urgent? (Priority Suggestion)

Accepted Answer

🔥 **Urgency**: **CRITICAL**.
📌 **Priority**: **Immediate Action Required**.
📉 **Risk**: High CVSS (9.1) + No Auth Required = High likelihood of automated attacks.…

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CVE-2025-39503 — AI Deep Analysis Summary

Q1What is this vulnerability? (Essence + Consequences)

Q2Root Cause? (CWE/Flaw)

Q3Who is affected? (Versions/Components)

Q4What can hackers do? (Privileges/Data)

Q5Is exploitation threshold high? (Auth/Config)

Q6Is there a public Exp? (PoC/Wild Exploitation)

Q7How to self-check? (Features/Scanning)

Q8Is it fixed officially? (Patch/Mitigation)

Q9What if no patch? (Workaround)

Q10Is it urgent? (Priority Suggestion)

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